Mesa (master): st/mesa: implement ARB_sync
Marek Olšák
mareko at kemper.freedesktop.org
Tue Mar 8 23:16:29 UTC 2011
Module: Mesa
Branch: master
Commit: 5257a6dbc65d742e6d0fcf4278a4157b2f39fdf7
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=5257a6dbc65d742e6d0fcf4278a4157b2f39fdf7
Author: Marek Olšák <maraeo at gmail.com>
Date: Sat Mar 5 20:32:28 2011 +0100
st/mesa: implement ARB_sync
The ServerWaitSync implementation matches Intel's driver.
The extension is advertised when pipe_screen::fence_finish is set.
---
src/mesa/SConscript | 1 +
src/mesa/sources.mak | 1 +
src/mesa/state_tracker/st_cb_syncobj.c | 122 ++++++++++++++++++++++++++++++++
src/mesa/state_tracker/st_cb_syncobj.h | 38 ++++++++++
src/mesa/state_tracker/st_context.c | 2 +
src/mesa/state_tracker/st_extensions.c | 4 +
6 files changed, 168 insertions(+), 0 deletions(-)
diff --git a/src/mesa/SConscript b/src/mesa/SConscript
index 7e8bb24..f797d62 100644
--- a/src/mesa/SConscript
+++ b/src/mesa/SConscript
@@ -197,6 +197,7 @@ statetracker_sources = [
'state_tracker/st_cb_queryobj.c',
'state_tracker/st_cb_rasterpos.c',
'state_tracker/st_cb_readpixels.c',
+ 'state_tracker/st_cb_syncobj.c',
'state_tracker/st_cb_strings.c',
'state_tracker/st_cb_texture.c',
'state_tracker/st_cb_viewport.c',
diff --git a/src/mesa/sources.mak b/src/mesa/sources.mak
index ae92e4d..9533094 100644
--- a/src/mesa/sources.mak
+++ b/src/mesa/sources.mak
@@ -215,6 +215,7 @@ STATETRACKER_SOURCES = \
state_tracker/st_cb_queryobj.c \
state_tracker/st_cb_rasterpos.c \
state_tracker/st_cb_readpixels.c \
+ state_tracker/st_cb_syncobj.c \
state_tracker/st_cb_strings.c \
state_tracker/st_cb_texture.c \
state_tracker/st_cb_viewport.c \
diff --git a/src/mesa/state_tracker/st_cb_syncobj.c b/src/mesa/state_tracker/st_cb_syncobj.c
new file mode 100644
index 0000000..69a8678
--- /dev/null
+++ b/src/mesa/state_tracker/st_cb_syncobj.c
@@ -0,0 +1,122 @@
+/**************************************************************************
+ *
+ * Copyright 2011 Marek Olšák <maraeo at gmail.com>
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+ /*
+ * Authors:
+ * Marek Olšák <maraeo at gmail.com>
+ */
+
+#include "main/glheader.h"
+#include "main/macros.h"
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
+#include "st_context.h"
+#include "st_cb_syncobj.h"
+
+struct st_sync_object {
+ struct gl_sync_object b;
+
+ struct pipe_fence_handle *fence;
+};
+
+
+static struct gl_sync_object * st_new_sync_object(struct gl_context *ctx,
+ GLenum type)
+{
+ if (type == GL_SYNC_FENCE)
+ return (struct gl_sync_object*)CALLOC_STRUCT(st_sync_object);
+ else
+ return NULL;
+}
+
+static void st_delete_sync_object(struct gl_context *ctx,
+ struct gl_sync_object *obj)
+{
+ struct pipe_screen *screen = st_context(ctx)->pipe->screen;
+ struct st_sync_object *so = (struct st_sync_object*)obj;
+
+ screen->fence_reference(screen, &so->fence, NULL);
+ FREE(so);
+}
+
+static void st_fence_sync(struct gl_context *ctx, struct gl_sync_object *obj,
+ GLenum condition, GLbitfield flags)
+{
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_sync_object *so = (struct st_sync_object*)obj;
+
+ assert(condition == GL_SYNC_GPU_COMMANDS_COMPLETE && flags == 0);
+ assert(so->fence == NULL);
+
+ pipe->flush(pipe, 0, &so->fence);
+}
+
+static void st_check_sync(struct gl_context *ctx, struct gl_sync_object *obj)
+{
+ struct pipe_screen *screen = st_context(ctx)->pipe->screen;
+ struct st_sync_object *so = (struct st_sync_object*)obj;
+
+ if (so->fence && screen->fence_signalled(screen, so->fence, 0) == 0) {
+ screen->fence_reference(screen, &so->fence, NULL);
+ so->b.StatusFlag = GL_TRUE;
+ }
+}
+
+static void st_client_wait_sync(struct gl_context *ctx,
+ struct gl_sync_object *obj,
+ GLbitfield flags, GLuint64 timeout)
+{
+ struct pipe_screen *screen = st_context(ctx)->pipe->screen;
+ struct st_sync_object *so = (struct st_sync_object*)obj;
+
+ /* We don't care about GL_SYNC_FLUSH_COMMANDS_BIT, because flush is
+ * already called when creating a fence. */
+
+ if (so->fence) {
+ screen->fence_finish(screen, so->fence, 0);
+ screen->fence_reference(screen, &so->fence, NULL);
+ so->b.StatusFlag = GL_TRUE;
+ }
+}
+
+static void st_server_wait_sync(struct gl_context *ctx,
+ struct gl_sync_object *obj,
+ GLbitfield flags, GLuint64 timeout)
+{
+ /* NO-OP.
+ * Neither Gallium nor DRM interfaces support blocking on the GPU. */
+}
+
+void st_init_syncobj_functions(struct dd_function_table *functions)
+{
+ functions->NewSyncObject = st_new_sync_object;
+ functions->FenceSync = st_fence_sync;
+ functions->DeleteSyncObject = st_delete_sync_object;
+ functions->CheckSync = st_check_sync;
+ functions->ClientWaitSync = st_client_wait_sync;
+ functions->ServerWaitSync = st_server_wait_sync;
+}
diff --git a/src/mesa/state_tracker/st_cb_syncobj.h b/src/mesa/state_tracker/st_cb_syncobj.h
new file mode 100644
index 0000000..c254684
--- /dev/null
+++ b/src/mesa/state_tracker/st_cb_syncobj.h
@@ -0,0 +1,38 @@
+/**************************************************************************
+ *
+ * Copyright 2011 Marek Olšák <maraeo at gmail.com>
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef ST_CB_SYNCOBJ_H
+#define ST_CB_SYNCOBJ_H
+
+
+struct dd_function_table;
+
+extern void
+st_init_syncobj_functions(struct dd_function_table *functions);
+
+
+#endif /* ST_CB_SYNCOBJ_H */
diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
index 7a19f35..60972e0 100644
--- a/src/mesa/state_tracker/st_context.c
+++ b/src/mesa/state_tracker/st_context.c
@@ -51,6 +51,7 @@
#include "st_cb_texture.h"
#include "st_cb_xformfb.h"
#include "st_cb_flush.h"
+#include "st_cb_syncobj.h"
#include "st_cb_strings.h"
#include "st_cb_viewport.h"
#include "st_atom.h"
@@ -292,6 +293,7 @@ void st_init_driver_functions(struct dd_function_table *functions)
st_init_viewport_functions(functions);
st_init_xformfb_functions(functions);
+ st_init_syncobj_functions(functions);
functions->UpdateState = st_invalidate_state;
}
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index d96985a..aaa1658 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -518,4 +518,8 @@ void st_init_extensions(struct st_context *st)
if (screen->get_param(screen, PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR)) {
ctx->Extensions.ARB_instanced_arrays = GL_TRUE;
}
+
+ if (screen->fence_finish) {
+ ctx->Extensions.ARB_sync = GL_TRUE;
+ }
}
More information about the mesa-commit
mailing list